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tumor

[too-mer, tyoo-]

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noun

a swollen part; swelling; protuberance.

an uncontrolled, abnormal, circumscribed growth of cells in any animal or plant tissue; neoplasm.

Archaic.

inflated pride; haughtiness.

pompous language; bombast.

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Also, especially British, tu·mour.

Origin:
1535–45; < Latin: a swelling, swollen state, equivalent to tum(ēre) to swell + -or -or¹

Related forms

tu·mor·like, adjective

tu·mor·ous, tu·mor·al, adjective

an·ti·tu·mor, adjective, noun

an·ti·tu·mor·al, adjective

non·tu·mor·ous, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To tumor

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Tumor is always a great word to know.

So is doohickey. Does it mean:

a gadget; dingus; thingumbob.

a scrap or morsel of food left at a meal.

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Example Sentences

Longtime exposure to loud noise may increase the risk of developing a benign nerve tumor called an acoustic neuroma.

During an autopsy, it was discovered that a brain tumor had.

If the drug can cut the size of a tumor in half that is a step in the right direction.

EXPAND

Longtime exposure to loud noise may increase the risk of developing a benign nerve tumor called an acoustic neuroma.

During an autopsy, it was discovered that a brain tumor had.

If the drug can cut the size of a tumor in half that is a step in the right direction.

There are two main risks that accompany the next operation: the position of the tumor and blood loss.

Cruciferous vegetables contain compounds that preferentially destroy ineffective mutant p53 tumor suppressor.

If one cell can incite tumor growth, researchers know that's the cell to target if they want to stop the tumor's growth.

Much of the improvement in breast cancer survival in recent years is because the average tumor is smaller, a new study has found.

However, when the tumor floats freely, the disease claims an unfair advantage.

But the tumor has already metastasized through the system.

Scientists think these facial bites are the way devil facial tumor disease is being spread among devils.

Restoring order to the chaotic blood vessels inside a tumor opens a window of opportunity for attacking it.

The theory is that a fraction of tumor cells, dubbed cancer stem cells, is responsible for the malignancy of tumors.

Posterior fossa tumor is a type of brain tumor located in or near the bottom of the skull.

Hardin recently had surgery for a malignant tumor behind an eye.

Avastin is a drug that inhibits the formation of blood vessels that supply a tumor.

Some sort of sling that would help him carry the weight of the remaining tumor on his left side.

In contrast, tumor cells tend to mutate and in this way they often become drug-resistant.

In doing so, it can simultaneously cut off the supply of blood to a tumor and halt cell division.

Its best results have been in people with a rare type of brain tumor called a primary central nervous system lymphoma.

It was discovered when a blood vessel in the tumor burst creating all the symptoms of a stroke.

Time now to cut out that cancerous tumor from our culture.

It shows precisely where doctors tried to remove the cancerous tumor gnawing at his esophagus.

Starving healthy cells helps to differentiate them from tumor cells, a trick that could make cancer treatments more effective.

Take a virtual tour into the growth of a tumor and watch how blood vessels help tu.

Young black women are more prone to develop a type of tumor that is especially deadly and hard to treat.

Suedmy attorney was practicing law with a brain tumor and let the statute of limitations run out with an offer on the table.

Medical bills have since wiped out his savings, and the tumor has reduced his voice to a whisper.

The fusion of tumor cells with white blood cells may be the secret behind how cancer spreads around the body.

The tiny objects would drift around randomly unless they encountered tumor tissue.

Traditional cancer therapies kill tumor cells but may spare stem cells that give rise to a new tumor.

The tumor was really a chunk of asphalt the dog was carrying in its mouth.

There are also malignant complications, which in his case could be a recurrence of his tumor that he was treated for.

It's a tumor inhibitor, but more importantly it's what researchers call a.

The symptoms are due to the tumor growing and pressing on the optic nerve and nearby structures.

Often promoted for their cancer-fighting power, antioxidants could in fact aid tumor growth, research in human breast cells shows.

When tumor cells are transplanted into experimental mice, only the stem cell variety spurs new cancer growth.

In cancer, aberrant kinases are known to contribute to tumor growth.

Brem said the single tumor extended to both sides of the brain.

The tumor can become big enough to crowd out the other organs or destroy the adrenal.

Thanks to fluorescent labels that help them to spot cancerous tissue, surgeons have removed ovarian tumor cells that might.

Sequencing entire genome of a cancer patient, including tumor.

Nixon underwent minor surgery last week to remove a cancerous tumor from the skin behind his left ear, his doctor said last night.

I'd imagine the paper will address this, in addition to its effect on the tumor stroma.

New findings suggest that the facial tumor disease afflicting the species can be traced to a single cell in a single animal.

In many types of cancer, p53 is disabled and cannot fulfill its role as a tumor suppressor.

Staging is the process used to determine the size of the tumor and where and how far it has spread.

Inhibition of tumor angiogenesis mediated by cartilage.

Ganglioneuroblastoma is an intermediate tumor arising from nerve tissue.

Find a breast cancer tumor when it is tiny, and a woman will probably beat the disease.

The procedure may correct the nosebleeds by itself, or it may be followed by surgery to remove the tumor.

One male mouse, however, did not show any signs of tumor growth despite repeated injections.

Pheochromocytoma is a rare tumor of adrenal gland tissue.

The auras began a year or two following surgery for a tumor that was pressing on my brain stem.

In women the tumor often releases these hormones, which can lead to male characteristics.

Her handlers suspected she might have cancer or a brain tumor.

COLLAPSE

Collins

World English Dictionary

tumour or tumor (ˈtjuːmə)

—n
1.	pathol
	a. any abnormal swelling
	b. a mass of tissue formed by a new growth of cells, normally independent of the surrounding structures
2.	obsolete pompous style or language

[C16: from Latin, from tumēre to swell]

tumor or tumor

—n

[C16: from Latin, from tumēre to swell]

'tumorous or tumor

—*adj*

'tumoral or tumor

—*adj*

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline

Word Origin & History

tumor

1540s, from L. tumor "swelling, condition of being swollen," from tumere "to swell" (see thigh).

American Heritage

Medical Dictionary

tumor tu·mor (t&oomacr;'mər, ty&oomacr;'-)
n.

An abnormal growth of tissue resulting from uncontrolled, progressive multiplication of cells and serving no physiological function; a neoplasm.
A swollen part; a swelling.

American Heritage

Science Dictionary

tumor (t

'mər) Pronunciation Key
See neoplasm. See Note at cancer.

American Heritage

Cultural Dictionary

tumor definition

An abnormal mass of new tissue growth that serves no function in the body. Tumors are usually classified as benign or malignant and are often caused by cancer.

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